Bầu cử tổng thống Hoa Kỳ tại Nam Carolina năm 1968

The 1968 United States presidential election in South Carolina took place on November 5, 1968. All 50 states and the District of Columbia were part of the 1968 United States presidential election. South Carolina voters chose 8 electors to the Electoral College, who voted for president and vice president.

For six decades up to 1950, South Carolina was a one-party state dominated by the Democratic Party. The Republican Party had been moribund due to the disfranchisement of Blacks and the complete absence of other support bases, as South Carolina completely lacked upland or German refugee whites opposed to secession.

Between 1900 and 1948, no Republican presidential candidate ever obtained more than seven percent of the total presidential vote – a vote which in 1924 reached as low as 6.6 percent of the total voting-age population or approximately 15 percent of the voting-age white population. South Carolina was the only state to swing more Democratic compared to 1964, largely due to Wallace's presence on the ballot. Among white voters, 48% supported Nixon, 41% supported Wallace, and 12% supported Humphrey.

South Carolina was the only Deep South state not to support Wallace in this election. It also began a near-perfect streak of voting the same way as North Carolina, with the two states only diverging in 2008.